Sudo: No password for certain command for everybody (including domain users)

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http://askubuntu.com – I want to allow the execution of a mount script for everybody. I'm usually working with a domain user. While allowing the usage of sudo for my user works, I can't disable the password prompt for a certain command. My sudoers file is unmodified, except for an additional line at the end: %domain^users ALL = PASSWD: ALL, NOPASSWD:/usr/local/bin/mount_synology I executed sudo -k to delete cached credentials, then I tried /usr/local/bin/mount_synology but I still get a password prompt. Any idea what's wrong? Also, how would I go about adding multiple allowed commands? (HowTos)